I see some pretty awesome and recognizable glitch funnies. x3 Well here are mine...
1. I also spawned up as someone else's character with username. Even ran around with it as well..
2. Typical South Pole problem to me. Loaded in game far underneath the surface.
3. Lonely Cave had a water-like/darkish surface once when I appeared from "Distant Cape" (calling it for short), and it became a marshmallow world afterwards all of a sudden. (It isn't even possible to return from Distant to the Cave, probably it was this time o3o)
4. Flew without wings once. I never have any wings on, but even one time I had and char looked like a Superman.
5. <Picture for example. Many people testing their emotes just for fun once in a while, including me obviously. I did it, clicked on the Lick emote, tongue still appeared on every other emote. Even the Fear emote, which is my profile picture now and it's awesome.
6. Maybe something recognizable for WolfQuest players. My game went crazy after typing many many dots in a post. After typing it had to load and my character was running around like it ate to much sugar. "Hyperness/Speedrun". I can tell you my belly was having a pain for an hour. x3
(This happens in WolfQuest when the wolf dies and you keep your chat open. Sadly that glitch has been fixed, because you could do it all the time by yourself.)